Thread cutter and binder for weft replenishing looms



Oct. 31, Q V PAYNE 1,932,801

THREAD CUTTER AND BINDER FOR WEFT REPLENISHING LOOMS Filed March 16, 1931 2 Sheets-Sheet 1 (00 IV l/E/V TUE 05 CAR MP4 YN A 7T0RNEy5 Oct. 31, 1933.

o. v. PAYNE THREAD CUTTER AND BINDER FOR WEFT REPLENISHING LOOMS Filed March 16, 1931 2 Sheets-Sheet 2 Fatented Oct. 31, 1933 srarss PATENT oFFics THREAD CUTTER AND BINDER FORv WEFT REPLENISHING LOOMS Application March 16, 1931. Serial No. 522,818

9 Claims.

This invention relates to improvements in weft parters for weft replenishing looms and it is the general object of the invention to provide such a device operable by the forwardly moving shuttle coacting with a parter which moves through the pivoted binder of the shuttle box. 7

My present invention relates to the type of thread parter which employs a hard or metallic surface on the front wall of a shuttle across which the weft extends, the surface coacting with a movable arm which at the time of transfer pinches the weft against the surface to elfect parting. It is an important object of the present invention in connection with this type of parter to provide abinder. which shall have an opening therethrough adjacent the eye of the shuttle when the latter is boxed to receive the cutter part which coacts with the shuttle plate and permit forward and if desired longitudinal movement of said part.

In multicolor looms the weft detector is adjacent the magazine end of the lay and it is a further object of my present invention to provide a binder having two slots, one for the weft detector and the other so proportioned as to receive the thread parter at a point substantially in vertical alignment with the shuttle delivery eye. With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In'the accompanying drawings, wherein a convenient embodiment of my invention is set forth, Fig. l is a front elevation of a portion of a loom with my invention applied thereto,

Fig. 2 is a vertical section. looking in the direction of arrows 2-2, Fig. 1,

Fig. 3 is a'plan view of the shuttle box and binder, V

Fig. 4 is an enlarged front view of certain parts shown in Fig. 3, looking in the direction of arrow 4, and

Fig. 5 is a vertical section looking in the direction of arrows 55, Fig. 4.

Referring to the drawings, I have shown magazine M of the multicolor type and innerand outer plates 10 and'll, respectively, which are held in spaced relation by tie rods two of which are shown herein at 12 and 13, respectively. The magazine is supported by a stand 14 mounted on the loom frame 15.

A transferrer arm 16 is pivoted about a fixed stud 1'7 carried by the magazine and is movable downwardly from its normally raised position to effect transfer. An arm 18 extending downwardly from the transferrer is for the purpose of withdrawing the detector D. The latter comprises a supporting structure 19 in which is slidably mounted a carrier 20 having an upturned forward end 21 positioned in the path of the arm 18. Pivoted to the carrier as at 221s a detector arm 23 having an offset 24 parallel to the shuttle S and receiving the rearward thrust of a compression spring 25. The forward end of the latter presses against the case 19 and a stop 26 on. the carrier engages the forwardly extending indicating tail 2'7 formed as part of the detector arm or finger 23. The detector may be made according to my prior Patent No; 1,738,198 and of itself forms no part of my present invention. ihe shuttle S is provided with a metallic plate 30 adjacent the shuttle delivery eye 31 and extending above and below a horizontal line extending through the delivery eye. The parter lever 35 is provided with a cutting blade 36pivoted thereto and having'preferably a rear sharpened edge 3'7 to engage the plate 30 on the shuttle. The lever 35 also has an arm 38 which lies behind the transferrcr carried arm 18. A compression spring 39 acts on the lever in such a way as to tend normally to move the cutter blade 36 rearwardly or toward the shuttle.

The matter thus far described forms no part of my present invention, the magazine being substantially as set forth in prior Patent No. 1,030,743 and the feeler operated and constructed according to the disclosure of my previously mentioned patent.

In carrying my invention into efiect I provide the lay L with a box back 69 which defines a portion of a shuttle box to receive the shuttle. The front part of the box is defined by a binder 61 which is formed substantially as shown in Fig. 4 and swings about a pivot 62 fixed with respect to the lay. The binder comprises a hearing or hub 63 on the pivot or stud 62 and located'between the horizontal parallel top and bottom portions 64 and 65, respectively, of a carrier member 66 having a vertical front web or wall 67. The latter is spaced somewhat from the hub 63 to define an open slot 68.

Secured to carrier 66 by means of screws 69 is a binder element '70 preferably formed of wood and having a slot '71 for the detector 23. Element '70 has the rear face thereof provided with a shuttle engaging leather covering '72 held thereto in any approved manner. The feeler slot '71 extends through the leather face so that the detector arm has access to the. weft within the shuttle.

The usual protector finger '73 may engage the forward part of the inner end of the binder.

The cutter blade 36 and its support extend through the slot 68 so as to engage the plate 30 carried by the shuttle, and it is to be understood that when the shuttle is properly boxed said plate can be reached through the opening 68 formed in the binder carrier 66.

As shown in Fig. 4, the plate 30 and the delivery eye 31 are both exposed through the opening 68, the inner end of the slot lying to the left of that part of the shuttle carried element 30 which coacts with the moving cutter, while the right end of the slot extends beyond the delivery eye 31. By reason of this arrangement the weft which is cut at the anvil or plate 30 is free to pass out of the eye 31 when pulled by the outgoing bobbin, there being no part of the binder bearing against the shuttle at this point. Reference to Fig. 3 will show that the binder lies in front of that part of the shuttle on which the plate 30 and delivery eye 31 are located. 1

In operation, when sufiicient weft for continued weaving is present in the shuttle the lay will move forwardly on each beat of the loom to cause detecting operation of the feeler, but the cutter blade 3'7 will be held forwardly with respect to the shuttle so as not to engage the plate 30, this result being brought about by the fact that finger 18 of the transferrer arm engaged arm 38 of the lever 35. During the forward movement of the lay the detector and the cutter will enter through their respective slots '71 and 68 of the binder. When the feeler indicates for a change the transferrer will act in the usual manner, withdrawing the feeler and at the same time permitting spring 39 to move the cutter 36 rearwardly. During forward movement of the lay the plate 30 of the shuttle will engage the cutting edge 37 and sever the thread which at this time extends from the delivery eye back along the shuttle binder toward the adjacent selvage.

As the shuttle enters the box the binder will be moved forwardlyto actuate the protector finger 73, but this movement will not interfere with the actions either of the detector finger 23 or the cutter 36. The shuttle S may be provided with a groove in which the weft may be located. A thread clamp not shown but of any convenient form may be located between the shuttle and the adjacent selvage to hold the weft which is severed at the plate 30 and prevent the same from being drawn into the shed on the next pick of the loom.

From the foregoing it will further be seen that the form of binder employed and located in front of the shuttle is such as to permit the cutter 36 to engage the plate on the shuttle by extending through a portion of the binder. The slot in the binder is preferably made sufficiently large to permit any side slipping movement of the cutter which may result from engagement with the plate 30 during advance movement of the lay.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a weft replenishing loom having a lay, a shuttle having a weft parting element on the front wall thereof across which the weft extends, a pivot for the binder, a shuttle delivery eye, a second weft parting element to coact with the first ele ment and located in front of the shuttle, and a shuttle binder pivoted to the lay and having a slot located between said elements when the shuttle is boxed, said second element extending through the slot of the binder into engagement with the element on the lay to part the weft and the part of the binder between the pivot and element on a boxed shuttle being out of engagement with the shuttle.

2. In a weft replenishing loom having a lay, a shuttle having a weft parting element on the front wall thereof across which the weft extends, a delivery eye for the shuttle located adjacent the outer end of the boxed shuttle, a second weft parting element to coact with the first element and located in front of the shuttle, and a shuttle binder pivoted to the lay and located between said elements when the shuttle is boxed, said binder being out of engagement with the shuttle beyond the shuttle cutter element.

3. In a loom shuttle binder, a hub to receive a pivotal support for the binder, a carrier formed of metal and having a portion thereof U-shaped in section, said carrier having spaced flat substantially parallel portions connecting the hub and U-shaped portion, said carrier being formed with a slot located between the horizontal portions and limited horizontally by the hub and U-shaped portions, and a shuttle engaging ele ment secured to the carrier and located in the U-shaped part.

4. In a weft replenishingvloom having a lay, a transferrer arm, a shuttle provided with a weft parting element and a delivery eye on the outside wall thereof, a second weft parting element independent of the shuttle to coact with the shuttle carried element, only when the arm has a transferring movement and a binder for the shuttle having an opening for the second parting element extending in front of the delivery eye and element on the shuttle to provide an unobstructed space between the delivery eye and the point of cutting the weft.

5. In a weft replenishing loom having a lay and a shuttle provided with a weft parting element and a delivery eye on the front wall thereof, a transferrer arm, a second weft parting element independent of the shuttle to coact with the shuttle carried element, only when the arm has a transferring movement and a binder. for the shuttle out of contact with the boxed shuttle from a point adjacent the shuttle element to the end of the shuttle adjacent the delivery eye, said binder having an opening through which the second element moves to engage the shuttle element to cut the weft.

6. In a weft replenishing loom having a lay, a shuttle provided with a weft parting element and-a delivery eye on the front wall thereof, a transferrer arm, a second weft parting element independent of the shuttle to coact with the shuttle carried element only when the arm has a transferring stroke, and a binder for the shuttle out of contact with the boxed shuttle from a point adjacent the shuttle element to the end of the shuttle adjacent the delivery eye, said binder having an opening through which the second element moves to engage the shuttle element, the opening being in front of both the delivery eye and the shuttle element.

'7. In a weft replenishing loom having a lay, a shuttle provided with a weft parting element and a delivery eye on the front wall thereof, a

transferrer arm, a second weft parting element independent of the shuttle to coact with the shuttle carried element only when the arm hasa transferring stroke, and a shuttle box forming member to engage a boxed shuttle and having an opening for the second parting element extending in front of the delivery eye and element to the shuttle to provide an unobstructed space between the delivery eye and the point of cutting the weft. c

8. In a weft replenishing loom having a lay and a shuttle with side walls defining therebetween a weft chamber for a yarn supply, a transferrer arm, having transferring strokes, a delivery eye connecting the chamber with the side walls, a cutter element located on the side wall adjacent the eye, a binder, a pivot for the binder adjacent the delivery eye of the shuttle when the latter is boxed, said binder having an opening therethrough in front of the delivery eye and element on the shuttle, and a second cutter element mounted in front of the binder and 0perated on transferring strokes only of the transferrer arm to project through the opening in the binder into engagement with the element on the 9. In a weft replenishing loom having a lay and a shuttle carrying a delivery eye and a cutter element adjacent thereto on the exterior of the shuttle, a transferrer arm, a binder, a pivot therefor adjacent the delivery eye of the shuttle when the latter is boxed, a second parting element to move toward the shuttle carried cutter element only on a transferring stroke of the transferrer arm and means defining a horizontal slot in the binder extending in front of the shuttle cutter element and delivery eye and through which the second cutter element moves as the transfer takes place, to coact with the first cutter element to sever weft lying between the elements in front of the shuttle.

OSCAR V. PAYNE. 

